Ulmus thomasii Sargent. Common name: Cork Elm, Rock Elm. Phenology: Mar-May. Habitat: Mesic upland and riparian forests, shaded bluff, especially over limestone. Distribution: QC to MN and NE, south to NJ, MD, WV, KY, TN, AR, and KS.
Origin/Endemic status: Native
Synonymy ⓘ: = Ar, C, Can, FNA3, Il, K4, Mi, Mo3, NE, NS, NY, POWO, Tn; Ulmus racemosa D.Thomas; = n/a — Pa; = Ulmus thomasi — F, G, GrPl, WV, orthographic variant. Basionym: Ulmus thomasii Sarg. 1902 "Urbasionym:" Ulmus racemosa D.Thomas 1831
Links to other floras: = Ulmus thomasii - FNA3
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Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: FAC
- Eastern Mountains and Piedmont: FACU
- Great Plains: FACU
- Midwest: FAC
- Northcentral & Northeast: FAC
Heliophily ⓘ: 5
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Horticultural Information
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